Leadership ability is innate

Leaders can often smile and speak confidently in the face of others who are skeptical, hostile or indifferent. They can laugh enthusiastically, promote new ideas, and infect others with their optimism. They don’t require approval and approbation to feel self-confident (although they often bask in the "general approval" of crowds).

Followers, on the other hand, feel stress when they are put in a leadership position.  Their eyes water.  They feel like hiding.  They simply want approval from a leader, or to be left alone.

We don't choose our motivations and emotions, and they can't be taught.  They come from within (i.e. they are innate) although they do have to be tuned. 

Certainly there is an abundance of books and training courses on developing leadership skills.  But those books don't change your motivational structure.  They simply train born leaders how to fine-tune their skills.  Anyone else who buys the book is simply wasting money.  If you browse through a typical book on leadership, you will find admonitions like "first, be confident"... "then, be bold"... In other words, their advice to become a leader is "first, be a leader".